CN204925492U - Wide angle shimmer camera lens - Google Patents
Wide angle shimmer camera lens Download PDFInfo
- Publication number
- CN204925492U CN204925492U CN201520583712.0U CN201520583712U CN204925492U CN 204925492 U CN204925492 U CN 204925492U CN 201520583712 U CN201520583712 U CN 201520583712U CN 204925492 U CN204925492 U CN 204925492U
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- lens
- crescent moon
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- moon lens
- negative
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Abstract
The utility model relates to a wide angle shimmer camera lens, it is the positive back C of group for the preceding A of group of burden, smooth fence B and focal power to be equipped with the focal power along light in proper order from preceding incident direction backward among the optical system of camera lens, the preceding A of group includes first veneer group and the biconvex lens A -6 who connects airtight from the preceding negative crescent moon lens A -1 who sets gradually backward, burden crescent moon lens A -2, positive crescent moon lens A -3, biconcave lens A -4 and biconvex lens A -5, after organize C and include second veneer group, biconvex lens C -4 and the burden crescent moon lens C -5 who connects airtight from the preceding negative crescent moon lens C -1 who sets gradually backward, by biconvex lens C -2 and biconcave lens C -3. This wide angle shimmer camera lens has the height and separates the image force in 600nm-900nm spectral range, survey the angle of vision be greater than 52, has 1: 1.2 large relative aperture, descends to the camera provides the photosignal in special weather conditions such as rain, snow, mists, produces the high video image of image force that separates.
Description
Technical field
The utility model relates to a kind of wide-angle low-light pick-up lens, belongs to field of photoelectric technology.
Background technology
The pick-up lens clear aperture of existing routine is less, and field angle is less, and under complex environment, the particularly special weather such as rain, snow, mist, light therethrough ability declines, and shortens monitoring distance, limits monitoring capability.
Utility model content
In view of this, the purpose of this utility model is to provide one for video camera provides photosignal under the special weather conditions such as rain, snow, mist, can produce the video image of high resolution, effectively improves the wide-angle low-light pick-up lens of monitoring capability.
The utility model adopts following scheme to realize: a kind of wide-angle low-light pick-up lens, in the optical system of described camera lens along light from front to back incident direction be provided with successively focal power be negative before to organize A, light hurdle B and focal power be rear group of positive C; The first gummed group that before described, group A comprises the negative crescent moon lens A-1 set gradually from front to back, negative crescent moon lens A-2, positive crescent moon lens A-3, biconcave lens A-4 and biconvex lens A-5 touch and biconvex lens A-6; Described rear group of C comprises the negative crescent moon lens C-1 set gradually from front to back, the second gummed group of being touched by biconvex lens C-2 and biconcave lens C-3, biconvex lens C-4 and negative crescent moon lens C-5.
Further, the airspace between described front group of A and rear group of C is 0.3mm.
Further, in described front group A, negative airspace between crescent moon lens A-1 and negative crescent moon lens A-2 is 4.6mm; Airspace between negative crescent moon lens A-2 and positive crescent moon lens A-3 is 1.6mm; Airspace between positive crescent moon lens A-3 and the first gummed group is 3.7mm; Airspace between first gummed group and biconvex lens A-6 is 0.1mm; In described rear group of C, negative airspace between crescent moon lens C-1 and the second gummed group is 0.8mm; Airspace between second gummed group and biconvex lens C-4 is 1.4mm; Airspace between biconvex lens C-4 and negative crescent moon lens C-5 is 1.0mm.
Further, described camera lens physical construction comprises the body tube that inside is provided with described front group of A and rear group of C, and described body tube rearward end is arranged with Connection Block, and described Connection Block rear end is fixed with the joint flange be connected with video camera.
Further, described body tube front end is bolted with the trim ring compressing negative crescent moon lens A-1 front edge in front group A, the first rubber washer is folded with between described trim ring and negative crescent moon lens A-1, bear in group A before described and be folded with the first spacer ring between crescent moon lens A-1 and negative crescent moon lens A-2, the second spacer ring is folded with between negative crescent moon lens A-2 and positive crescent moon lens A-3, the 3rd spacer ring is folded with between positive crescent moon lens A-3 and the first gummed group, the 4th spacer ring is folded with between first gummed group and biconvex lens A-6, the 5th spacer ring is folded with between negative crescent moon lens C-1 in biconvex lens A-6 and rear group of C, bear and be folded with the 6th spacer ring between crescent moon lens C-1 and the second gummed group, the 7th spacer ring is folded with between second gummed group and biconvex lens C-4, the 8th spacer ring is folded with between biconvex lens C-4 and negative crescent moon lens C-5, described body tube rearward end is provided with the bulge loop heading on negative crescent moon lens C-5 back edge, the second rubber washer is folded with between bulge loop and negative crescent moon lens C-5.
Further, described body tube rearward end is arranged with the O-ring seal be sandwiched between body tube and Connection Block, described Connection Block sidewall offers screw hole, described body tube is provided with ring groove with screw hole corresponding position, is folded with rubber sheet gasket between described Connection Block and video camera.
Compared with prior art, the utility model has following beneficial effect: this wide-angle low-light pick-up lens has high resolution in 600nm ~ 900nm spectral range, observation field angle is greater than 52 °, there is the object lens of large relative aperture of 1: 1.2, for video camera provides photosignal under the special weather conditions such as rain, snow, mist, produce the video image of high resolution, effectively improve monitoring capability.
For making the purpose of this utility model, technical scheme and advantage clearly understand, below by specific embodiment and relevant drawings, the utility model will be described in further detail.
Accompanying drawing explanation
Fig. 1 is the optical system schematic diagram of the utility model embodiment;
Fig. 2 is the physical construction schematic diagram of the utility model embodiment;
Number in the figure illustrates: 1-body tube, 2-trim ring, 3-first rubber washer, 4-bears crescent moon lens A-1, 5-first spacer ring, 6-bears crescent moon lens A-2, 7-second spacer ring, 8-positive crescent moon lens A-3, 9-first gummed group, 10-biconvex lens A-6, 11-bears crescent moon lens C-1, 12-second gummed group, 13-O-ring seal, 14-Connection Block, 15-rubber sheet gasket, 16-video camera, 17-bears crescent moon lens C-5, 18-second rubber washer, 19-the 8th spacer ring, 20-the 7th spacer ring, 21-biconvex lens C-4, 22-the 6th spacer ring, 23-the 5th spacer ring, 24-the 4th spacer ring, 25-the 3rd spacer ring.
Embodiment
As shown in Figure 1 and 2, a kind of wide-angle low-light pick-up lens, in the optical system of described camera lens along light from front to back incident direction be provided with successively focal power be negative before to organize A, light hurdle B and focal power be rear group of positive C; The first gummed group that before described, group A comprises the negative crescent moon lens A-1 set gradually from front to back, negative crescent moon lens A-2, positive crescent moon lens A-3, biconcave lens A-4 and biconvex lens A-5 touch and biconvex lens A-6; Described rear group of C comprises the negative crescent moon lens C-1 set gradually from front to back, the second gummed group of being touched by biconvex lens C-2 and biconcave lens C-3, biconvex lens C-4 and negative crescent moon lens C-5.
In the present embodiment, the airspace between described front group of A and rear group of C is 0.3mm.
In the present embodiment, in described front group A, negative airspace between crescent moon lens A-1 and negative crescent moon lens A-2 is 4.6mm; Airspace between negative crescent moon lens A-2 and positive crescent moon lens A-3 is 1.6mm; Airspace between positive crescent moon lens A-3 and the first gummed group is 3.7mm; Airspace between first gummed group and biconvex lens A-6 is 0.1mm; In described rear group of C, negative airspace between crescent moon lens C-1 and the second gummed group is 0.8mm; Airspace between second gummed group and biconvex lens C-4 is 1.4mm; Airspace between biconvex lens C-4 and negative crescent moon lens C-5 is 1.0mm.
The utility model wide-angle low-light pick-up lens has high resolution in 600nm ~ 900nm spectral range, observation field angle is greater than 52 °, there is the object lens of large relative aperture of 1: 1.2, realize the monitoring to target under the special weather condition of rainy day, deficiency such as visible light ray such as snow sky, mist etc., effectively improve monitoring capability.
The optical system be made up of above-mentioned lens set reaches following optical index:
1. focal length: f '=16mm;
2. field angle: 2 ω >=52 °;
3. relative aperture: >=1/1.2;
4. service band: 600nm ~ 900nm;
5. optical length: Σ L≤60mm;
6. weight :≤100g.
In the present embodiment, described camera lens physical construction comprises the body tube 1 that inside is provided with described front group of A and rear group of C, larger vibration and mechanical shock requirement can be born to make camera lens, described body tube 1 rearward end is arranged with Connection Block 14, described Connection Block 14 rear end is fixed with the joint flange be connected with video camera 16, by suitably regulating joint flange front mounting surface position, make installed surface near the centre of gravity place of camera lens as far as possible, thus improve the anti-seismic performance of camera lens.
In the present embodiment, described body tube 1 front end is bolted with the trim ring 2 compressing negative crescent moon lens A-1 front edge in front group A, it is fastening that trim ring 2 screws rear gluing, the first rubber washer 3 is folded with to ensure the watertightness performance of optical lens between described trim ring 2 and negative crescent moon lens A-1, bear in group A before described and be folded with the first spacer ring 5 between crescent moon lens A-1 and negative crescent moon lens A-2, the second spacer ring 7 is folded with between negative crescent moon lens A-2 and positive crescent moon lens A-3, the 3rd spacer ring 25 is folded with between positive crescent moon lens A-3 and the first gummed group, the 4th spacer ring 24 is folded with between first gummed group and biconvex lens A-6, the 5th spacer ring 23 is folded with between negative crescent moon lens C-1 in biconvex lens A-6 and rear group of C, bear and be folded with the 6th spacer ring 22 between crescent moon lens C-1 and the second gummed group, the 7th spacer ring 20 is folded with between second gummed group and biconvex lens C-4, the 8th spacer ring 19 is folded with between biconvex lens C-4 and negative crescent moon lens C-5, described body tube rearward end is provided with the bulge loop heading on negative crescent moon lens C-5 back edge, the second rubber washer 18 is folded with to ensure the watertightness performance of optical lens between bulge loop and negative crescent moon lens C-5.
In the present embodiment, described body tube 1 rearward end is arranged with and is sandwiched in O-ring seal 13 between body tube 1 and Connection Block 14 to ensure the watertightness performance of optical lens, described Connection Block 14 sidewall offers screw hole, for being connected and fixed whole optical lens, described body tube 1 is provided with ring groove with screw hole corresponding position, be folded with rubber sheet gasket 15 between described Connection Block 14 and video camera 16, ensure the water seal of optical lens, touch the mark requirement.
In the present embodiment, the inwall appropriate positions such as described body tube, trim ring and spacer ring are processed with the suitable groove of width, and coat delustring paint, utilize lens barrel inwall to stray light emission and scattering and absorption, thus reach the object suppressing parasitic light.
Described body tube and Connection Block part adopt titanium alloy (TC4) material, and significantly alleviate own wt and overall volume when meeting requirement of strength, compact conformation is small and exquisite, and described camera lens wall thickness is 0.8mm ~ 1.2mm.
Above-listed preferred embodiment; the purpose of this utility model, technical scheme and advantage are further described; be understood that; the foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (6)
1. a wide-angle low-light pick-up lens, is characterized in that: in the optical system of described camera lens along light from front to back incident direction be provided with successively focal power be negative before to organize A, light hurdle B and focal power be rear group of positive C; The first gummed group that before described, group A comprises the negative crescent moon lens A-1 set gradually from front to back, negative crescent moon lens A-2, positive crescent moon lens A-3, biconcave lens A-4 and biconvex lens A-5 touch and biconvex lens A-6; Described rear group of C comprises the negative crescent moon lens C-1 set gradually from front to back, the second gummed group of being touched by biconvex lens C-2 and biconcave lens C-3, biconvex lens C-4 and negative crescent moon lens C-5.
2. wide-angle low-light pick-up lens according to claim 1, is characterized in that: the airspace between described front group of A and rear group of C is 0.3mm.
3. wide-angle low-light pick-up lens according to claim 2, is characterized in that: before described, in group A, negative airspace between crescent moon lens A-1 and negative crescent moon lens A-2 is 4.6mm; Airspace between negative crescent moon lens A-2 and positive crescent moon lens A-3 is 1.6mm; Airspace between positive crescent moon lens A-3 and the first gummed group is 3.7mm; Airspace between first gummed group and biconvex lens A-6 is 0.1mm; In described rear group of C, negative airspace between crescent moon lens C-1 and the second gummed group is 0.8mm; Airspace between second gummed group and biconvex lens C-4 is 1.4mm; Airspace between biconvex lens C-4 and negative crescent moon lens C-5 is 1.0mm.
4. wide-angle low-light pick-up lens according to claim 1, it is characterized in that: described camera lens physical construction comprises the body tube that inside is provided with described front group of A and rear group of C, described body tube rearward end is arranged with Connection Block, and described Connection Block rear end is fixed with the joint flange be connected with video camera.
5. wide-angle low-light pick-up lens according to claim 4, it is characterized in that: described body tube front end is bolted with to compress the trim ring of negative crescent moon lens A-1 front edge in front group A, the first rubber washer is folded with between described trim ring and negative crescent moon lens A-1, bear in group A before described and be folded with the first spacer ring between crescent moon lens A-1 and negative crescent moon lens A-2, the second spacer ring is folded with between negative crescent moon lens A-2 and positive crescent moon lens A-3, the 3rd spacer ring is folded with between positive crescent moon lens A-3 and the first gummed group, the 4th spacer ring is folded with between first gummed group and biconvex lens A-6, the 5th spacer ring is folded with between negative crescent moon lens C-1 in biconvex lens A-6 and rear group of C, bear and be folded with the 6th spacer ring between crescent moon lens C-1 and the second gummed group, the 7th spacer ring is folded with between second gummed group and biconvex lens C-4, the 8th spacer ring is folded with between biconvex lens C-4 and negative crescent moon lens C-5, described body tube rearward end is provided with the bulge loop heading on negative crescent moon lens C-5 back edge, the second rubber washer is folded with between bulge loop and negative crescent moon lens C-5.
6. wide-angle low-light pick-up lens according to claim 5, it is characterized in that: described body tube rearward end is arranged with the O-ring seal be sandwiched between body tube and Connection Block, described Connection Block sidewall offers screw hole, described body tube is provided with ring groove with screw hole corresponding position, between described Connection Block and video camera, is folded with rubber sheet gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520583712.0U CN204925492U (en) | 2015-08-06 | 2015-08-06 | Wide angle shimmer camera lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520583712.0U CN204925492U (en) | 2015-08-06 | 2015-08-06 | Wide angle shimmer camera lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204925492U true CN204925492U (en) | 2015-12-30 |
Family
ID=54974605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520583712.0U Withdrawn - After Issue CN204925492U (en) | 2015-08-06 | 2015-08-06 | Wide angle shimmer camera lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204925492U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105022142A (en) * | 2015-08-06 | 2015-11-04 | 福建福光股份有限公司 | Wide-angled low light camera lens |
| CN107884911A (en) * | 2017-11-29 | 2018-04-06 | 福建福光股份有限公司 | A kind of big target surface low-light level imaging camera lens of large aperture |
-
2015
- 2015-08-06 CN CN201520583712.0U patent/CN204925492U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105022142A (en) * | 2015-08-06 | 2015-11-04 | 福建福光股份有限公司 | Wide-angled low light camera lens |
| CN105022142B (en) * | 2015-08-06 | 2017-04-12 | 福建福光股份有限公司 | Wide-angled low light camera lens |
| CN107884911A (en) * | 2017-11-29 | 2018-04-06 | 福建福光股份有限公司 | A kind of big target surface low-light level imaging camera lens of large aperture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151230 Effective date of abandoning: 20170412 |
|
| AV01 | Patent right actively abandoned |